Endpoint Security Engineer/Administrator

Description

Join Leidos as an Endpoint Security Engineer/Administrator and be part of a dynamic team dedicated to enhancing mission success through innovation. Based at the Washington Navy Yard, you will play a critical role in defending our nation's cyber frontiers.

Exciting Responsibilities

In this role, you will not simply maintain systems; you will transform them. Collaborate with a talented team to install, configure, and optimize sophisticated security solutions, ensuring that our critical network infrastructure operates flawlessly. You will also have the opportunity to evaluate cutting-edge technologies and influence the future of endpoint protection in a secure and sensitive environment.

Your Contributions Will Include:

• Overseeing the complete lifecycle of Endpoint Security Solutions (ESS) and their agents - including installation, management, maintenance, and optimization.
• Developing and applying custom ESS signatures and security policies.
• Monitoring ESS proactively for intrusions, failures, and performance issues.
• Ensuring secure and reliable endpoint operations across all clients and servers.
• Troubleshooting ESS deployment and policy implementation on both local and remote systems.
• Conducting in-depth threat analysis and designing custom security rules for advanced threats.
• Generating detailed reports on system performance, health, and event trends.
• Supporting major updates and compliance initiatives, including STIG-mandated Trellix upgrades.
• Contributing to the design and evaluation of network components while developing leading-edge technical solutions.

Basic Qualifications:

• Active Top Secret clearance (SCI eligible).
• 8+ years of IT experience , including at least 2 years focusing on ESS or equivalent experience.
• DOD 8570 IAT Level II certification or higher.
• Proficient in Windows Server 2016+ and endpoint platforms like Trellix Agent, ENS FW, PA, DLP, RSD, and ePO.
• Excellent analytical skills with a strong ability to troubleshoot under pressure.

Preferred Qualifications:

• TS/SCI clearance and DOD 8570 IAT Level III certification.
• Experience with RedHat Enterprise Linux, VMware, Microsoft Hypervisor, or RedHat VM Manager.
• Knowledge of SADR environments and ePO server maintenance.
• Completion of Basic and Advanced ESS DISA training.

If you're ready to embrace one of the most crucial roles in national cyber defense - let's connect . This opportunity allows you to lead the charge in protecting critical systems at a pivotal strategic site.

If you seek comfort, this may not be the place for you. At Leidos, we strive to outthink, outbuild, and outperform the status quo, driven by the demands of our mission. We are not in search of followers; we want innovators who challenge norms, inspire change, and commit to excellence.

Original Posting: September 30, 2025

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range: Pay Range $89,700.00 - $162,150.00

The Leidos pay range for this job level is a general guideline only and does not guarantee compensation. Various factors will influence the final offer, including the responsibilities of the job, education, experience, skills, and internal equity.